Steam-engine.



N0. v25,517. PATENTED APR, 14, 1903.

GHARLES VOLZ & CHRISTIAN VOLZ.

STEAM ENGINE.

APPLICATION FILED AUG. 23, 1902. N0 MODEL.

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UNITED STATES PATENT OFFICE.

CHARLES VOLZ AND CHRISTIAN VOLZ, OF WOLFTON, MICHIGAN.

STEAM-ZE-NGINEL SPECIFICATION forming part of Letters Patent No. 725,517, dated April 14, 1903. Application filed August 23, 1902. Serial No. 120,778. on model.)

To atZZ whom it may concern:

Be it known that we, CHARLES VoLZ and CHRISTIAN VOLZ,citizens of the United States, residing at Wolfton, Huron county,;Michi-" gan, have invented certain new and useful Improvements in Steam-Engines; and we do: declare the following to be a full, clear, and

exact description of the inventiomwhich will enable others skilled in the art to Whichit appertains to make and use the same. 7

This invention relates to improvements in steam-engines of the vertical reciprocating type. 4

The invention has for its object the construction of a cheap and efficient form of engine, in which the working parts will be accessible and readily adjustable for use.

The invention consists generally in arranging a vertical double-action cylinder upon standards, to one of whichis attached a main axle-bearing having a fiy-wheel on theoutside and a crank on the inside. The crank and piston-rod are joined by a connectingrod pivoted to the piston-rod adjacent, to its lower end, which carries a cross-head engaging with slides supported from the base of the engine. The upper extremities of the slides are connected together by means of a curved cross-piece.

This invention also consists of other points of novelty, as will more fully appear in the specification and claims.

In order to better understand the nature of this invention, attention is directed to the accompanying drawings, in which Figure 1 represents a vertical view, partly in section, of the complete engine. Fig. 2 is a section taken on the line a; m of Fig. 1, and Fig. 3 is an end View of the cross'head and guides. 'f

In all the views like parts are designated by identical numerals of reference.

In the drawings the cylinder 1 is shown as being supported upon a base 2 by means of the standards 3 4. To the standard lis bolted the bearing-box 5, through which the shaft 6 passes. This shaft carries a balancewheel and pulley 7 on the outside and a crank 8 on the inside, through which it is connected to the piston-rod 9 through the agency of the connecting-rod 10 and pins 11 and 12. The lower extremity of the pistonrod 9 carries a cross-head 13, which engages with the slides 1414, bolted to the base 2. The upper extremities of the slides are connected together and form a unitary structure by means of a cross piece 15, offset at 16 to permit the pin.12, piston-rod 9, and connecting-rod 10 to freely reciprocate. v

The valve 17 is rectangular in shape, as shown in Fig. 2, and is provided with a central steam-passage 18. 7 between the plane face 19 of the cylinder and a telescopic pipe-section 20, which ismounted within an opening in the valve-chest 28, so as tojfreely move therein, and engages with the livesteam passage 21. The telescopic pipe-section 20 has acentral bore 22 and a reduced exit 23 therein. The face 24 of" the pipe-section, which engages with the valve 17,

is plane and arranged to make a steam-tight joint therewith. The steam-ports 25 and 26 The valve engages and exhaust-port 27 all connect with the steam chest 28. The valve 'is operated by means of an eccentric and gearing 29 of ordin-ary pattern, a fixed bearing 30 being provided for the valve-stem 31.

The operation of the valve is as follows: As shown in the drawings, the port 25 communicates with the live-steam passage 21 through the opening 18 in the valve. The exhaust-port 26 is open, thus allowing escape of the steam around the valve through the exhaust-port 27 Upon the piston reaching the lower limit of its stroke and the valve being raised by means of its gear the port 26 will then communicate with the opening18 and the port 25 will be open to the exhaust. It is to be noted that the relative areas of the opening 22 and exhaust 23 in the pipe-section 20 are so proportioned that the pipe' section will press against the valve with sufficient force to make steam-tight joints between it and the plane surfaces 19 and 24.

Having now particularly described ourinvention, what we claim, and desire to secure by Letters Patent, is-

1. In a. steam-engine, the combination with a cylinder, supporting-standards therefor, and a base, of the gu'ides14, connected to the base and having the plate 15, connecting their upper extremities, the said plate being offset to one side at 16, substantially as described.

2. In a steam-engine, the cross-head guideframe therefor, embracing in combination the guides 14;, and connecting'plate 15, offset to one side at 16, tying, the upper extremities of the guides together, and means for attaching the frame to the engine, substantially as set forth.

3. Ina steam-engine, the combination with a cylinder, supporting-standards therefor anda base, of the shaft, bearings on the standards for the shaft, a crank, a connecting-rod and cross-head, a vertical piston-rod, the guides 14 connected to the base and having the plate 15 connecting their upper extremities, the said plate beingoifset to one side at 16, to permit clearance of the piston-rod and con- :5 meeting-rod, substantially as described.

This specification signed and witnessed this 16th day of August, 1902.

CHARLES VOLZ. CHRISTIAN VOLZ.

Witnesses:

JASPER N. HOLMES, LEANDER A. I-IoLMEs. 

